| Vendor | Spec | Unit | Price | Currency | Date |
| Hunan Jianghai Env | China national standards | MT | 110.35 | USD | 20251211 |
| Hunan Jianghai Env | China national standards | MT | 110.24 | USD | 20251210 |
| Hunan Jianghai Env | China national standards | MT | 536.93 | USD | 20251209 |
| Hunan Jianghai Env | China national standards | MT | 537.0 | USD | 20251208 |
| Hunan Jianghai Env | China national standards | MT | USD | 20251203 | |
| Hunan Jianghai Env | China national standards | MT | USD | 20251201 | |
| Hunan Jianghai Env | China national standards | MT | USD | 20251126 | |
| Hunan Jianghai Env | China national standards | MT | USD | 20251125 | |
| Hunan Jianghai Env | China national standards | MT | USD | 20251124 | |
| Hunan Jianghai Env | China national standards | MT | USD | 20251121 |